Anthropic's Claude Opus 5.5 Arrives on Design Arena for Agentic Coding Tests
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Anthropic's Claude Opus 5.5 is now available on Design Arena, giving builders another public venue to test the model on agentic design, full-stack and game-development workflows. The addition follows Anthropic's September 22 launch of Opus 5.5 as a lower-cost model for long-running coding and knowledge-work agents.
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